QPushButton#btnmin {
    border: none;                         /* 无边框 */
    background-color: transparent;        /* 透明背景 */
    color: #666;                          /* 符号颜色 */
    font-size: 20px;                      /* 符号大小 */
    padding: 0;
    margin: 0;
    min-width: 30px;                      /* 最小宽度 */
    min-height: 30px;                     /* 最小高度 */
}

QPushButton#btnmin:hover {
    color: #333;                          /* 悬停时颜色加深 */
}

QPushButton#btnmin:pressed {
    color: #999;                          /* 按下时颜色变浅 */
}

QPushButton#btnmax {
    border: none;
    background-color: transparent;
    color: #666;
    font-size: 20px;
    padding: 0;
    margin: 0;
    min-width: 30px;
    min-height: 30px;
}

QPushButton#btnmax:hover {
    color: #333;
}

QPushButton#btnmax:pressed {
    color: #999;
}

QPushButton#btnclose {
    border: none;
    background-color: transparent;
    color: #666;
    font-size: 20px;
    padding: 0;
    margin: 0;
    min-width: 30px;
    min-height: 30px;
}

QPushButton#btnclose:hover {
    background-color:red;                      /* 关闭按钮悬停时变红 */
}

QPushButton#btnclose:pressed {
    color: #ff9999;                       /* 按下时红色变浅 */
}

QLabel#labelpicture {
    border: none;
    border-image: url(:/img/10230132,640,960.jpg);
    padding: 10px 20px;
    margin: 4px 2px;
}

QHBoxLayout#lamianbar {
    background-color: white;        /* 透明背景 */
}

QHBoxLayout#lastatus {
    background-color: white;        /* 透明背景 */
}
